CVE-2024-45779
6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H
Summary
An integer overflow flaw was found in the BFS file system driver in grub2. When reading a file with an indirect extent map, grub2 fails to validate the number of extent entries to be read. A crafted or corrupted BFS filesystem may cause an integer overflow during the file reading, leading to a heap of bounds read. As a consequence, sensitive data may be leaked, or grub2 will crash.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
0 <= 2.12 | affected |
Weaknesses
- CWE-190: Integer Overflow or Wraparound
Workarounds
Do not run grub2 in an untrusted environment, specifically with a BFS file system image.
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://access.redhat.com/security/cve/CVE-2024-45779
- https://bugzilla.redhat.com/show_bug.cgi?id=2345854
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html
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